Or as the modern school system would say: "Shut up and stop asking things, look at the examples in your textbook and memorize this proof I've written onto the b

Or as the modern school system would say: "Shut up and stop asking things, look at the examples in your textbook and memorize this proof I've written onto the blackboard. The test will only verify if you can apply the process like a robot, so understand it if you want but I couldn't care less if you actually do."